Problem /usr/local/bin/rsync: Undefined symbol "locale_charset"

Hi forum

Months ago I installed a computer with freenas 9.1.1 x86 release

i configured rsync and cron jobs work fine. but a few days ago presents problems when rsync try to do a task

from terminal type rsync command and throws me this error

/ usr / local / bin / rsync: Undefined symbol "locale_charset"

I searched google but can not find something about freebsd or freenas

if someone can help, i don't want upgrade, this version works perfectly on everything else except this error...

Problem /usr/local/bin/rsync: Undefined symbol "locale_charset"